The morphological mapping of lateral compression type 1 pelvic fracture and pelvic ring stability classification: a finite element analysis

Abstract Purpose This finite element analysis assessed lateral compression (LC-1) fracture stability using machine learning for morphological mapping and classification of pelvic ring stability. Methods Computed tomography (CT) files of LC-1 pelvic fractures were collected. After morphological mappi...

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Autores principales: Bin-Fei Zhang, Jun Wang, Yu-Min Zhang, Hui-Guang Cheng, Qian-Yue Cheng, Wen-Wen Cao
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Lenguaje:EN
Publicado: BMC 2021
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Acceso en línea:https://doaj.org/article/b735071770f44c788864be25d60455b9
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spelling oai:doaj.org-article:b735071770f44c788864be25d60455b92021-11-21T12:29:56ZThe morphological mapping of lateral compression type 1 pelvic fracture and pelvic ring stability classification: a finite element analysis10.1186/s13018-021-02818-31749-799Xhttps://doaj.org/article/b735071770f44c788864be25d60455b92021-11-01T00:00:00Zhttps://doi.org/10.1186/s13018-021-02818-3https://doaj.org/toc/1749-799XAbstract Purpose This finite element analysis assessed lateral compression (LC-1) fracture stability using machine learning for morphological mapping and classification of pelvic ring stability. Methods Computed tomography (CT) files of LC-1 pelvic fractures were collected. After morphological mapping and producing matrix data, we used K-means clustering in unsupervised machine learning to classify the fractures. Based on these subtypes, we manually added fracture lines in ANSYS software. Finally, we performed a finite element analysis of a normal pelvis and eight fracture subtypes based on von Mises stress and total deformation changes. Results A total of 218 consecutive cases were analyzed. According to the three main factors—zone of sacral injury and completion, pubic ramus injury side, and the sagittal rotation of the injured hemipelvis—the LC-1 injuries were classified into eight subtypes (I–VIII). No significant differences in stress or deformation were observed between unilateral and bilateral public ramus fractures. Subtypes VI and VIII showed the maximum stress while subtypes V–VIII showed the maximum deformation in the total pelvis and sacrum. The subtypes did not differ in superior public ramus deformation. Conclusions Complete fracture of sacrum zones 2/3 may be a feature of unstable LC-1 fractures. Surgeons should give surgical strategies for subtypes V–VIII.Bin-Fei ZhangJun WangYu-Min ZhangHui-Guang ChengQian-Yue ChengWen-Wen CaoBMCarticleMorphological mappingLateral compression type 1Pelvic fractureStabilityClassificationFinite element analysisOrthopedic surgeryRD701-811Diseases of the musculoskeletal systemRC925-935ENJournal of Orthopaedic Surgery and Research, Vol 16, Iss 1, Pp 1-10 (2021)
institution DOAJ
collection DOAJ
language EN
topic Morphological mapping
Lateral compression type 1
Pelvic fracture
Stability
Classification
Finite element analysis
Orthopedic surgery
RD701-811
Diseases of the musculoskeletal system
RC925-935
spellingShingle Morphological mapping
Lateral compression type 1
Pelvic fracture
Stability
Classification
Finite element analysis
Orthopedic surgery
RD701-811
Diseases of the musculoskeletal system
RC925-935
Bin-Fei Zhang
Jun Wang
Yu-Min Zhang
Hui-Guang Cheng
Qian-Yue Cheng
Wen-Wen Cao
The morphological mapping of lateral compression type 1 pelvic fracture and pelvic ring stability classification: a finite element analysis
description Abstract Purpose This finite element analysis assessed lateral compression (LC-1) fracture stability using machine learning for morphological mapping and classification of pelvic ring stability. Methods Computed tomography (CT) files of LC-1 pelvic fractures were collected. After morphological mapping and producing matrix data, we used K-means clustering in unsupervised machine learning to classify the fractures. Based on these subtypes, we manually added fracture lines in ANSYS software. Finally, we performed a finite element analysis of a normal pelvis and eight fracture subtypes based on von Mises stress and total deformation changes. Results A total of 218 consecutive cases were analyzed. According to the three main factors—zone of sacral injury and completion, pubic ramus injury side, and the sagittal rotation of the injured hemipelvis—the LC-1 injuries were classified into eight subtypes (I–VIII). No significant differences in stress or deformation were observed between unilateral and bilateral public ramus fractures. Subtypes VI and VIII showed the maximum stress while subtypes V–VIII showed the maximum deformation in the total pelvis and sacrum. The subtypes did not differ in superior public ramus deformation. Conclusions Complete fracture of sacrum zones 2/3 may be a feature of unstable LC-1 fractures. Surgeons should give surgical strategies for subtypes V–VIII.
format article
author Bin-Fei Zhang
Jun Wang
Yu-Min Zhang
Hui-Guang Cheng
Qian-Yue Cheng
Wen-Wen Cao
author_facet Bin-Fei Zhang
Jun Wang
Yu-Min Zhang
Hui-Guang Cheng
Qian-Yue Cheng
Wen-Wen Cao
author_sort Bin-Fei Zhang
title The morphological mapping of lateral compression type 1 pelvic fracture and pelvic ring stability classification: a finite element analysis
title_short The morphological mapping of lateral compression type 1 pelvic fracture and pelvic ring stability classification: a finite element analysis
title_full The morphological mapping of lateral compression type 1 pelvic fracture and pelvic ring stability classification: a finite element analysis
title_fullStr The morphological mapping of lateral compression type 1 pelvic fracture and pelvic ring stability classification: a finite element analysis
title_full_unstemmed The morphological mapping of lateral compression type 1 pelvic fracture and pelvic ring stability classification: a finite element analysis
title_sort morphological mapping of lateral compression type 1 pelvic fracture and pelvic ring stability classification: a finite element analysis
publisher BMC
publishDate 2021
url https://doaj.org/article/b735071770f44c788864be25d60455b9
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